Document Detail

The effect of parental race on fetal and infant mortality in twin gestations.
MedLine Citation:
PMID:  15540885     Owner:  NLM     Status:  MEDLINE    
Previous work has found that singleton birth outcomes are better if the father is black and the mother is white than if the father is white and the mother is black. We sought to examine the effects of parental race on fetal and infant mortality in twins. We analyzed the fetal and infant mortality rates in four groups [both parents white (W-W), both parents black (B-B), father black and mother white (FB-MW), and father white and mother black (FW-MB)], using the 1995--1997 U.S. twin registry data (249,221 twins). Compared to W-W, the infant mortality for B-B, FW-MB, and FB-MW (respectively, relative risk [RR] 1.84, 95% confidence interval [CI] 1.73-1.95; RR 1.39, 95% CI 1.03-1.51; and RR 1.49, 95% CI 1.26-1.77) were all significantly different from W-W but not from each other. When fetal mortality was added to infant mortality, the combined mortality was highest for B-B (RR 1.66, 95% CI 1.58-1.75), intermediate for FW-MB (RR 1.18, 95% CI 0.92-1.51) and FB-MW (RR 1.37, 95% CI 1.19-1.58) and lowest for W-W. Thus, twin infants born to black parents have higher risk of fetal and infant mortality compared with twin infants born to white parents and infants of mixed race parents generally have intermediate outcomes.
Hongzhuan Tan; Shi Wu Wen; Mark Walker; Kitaw Demissie
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Journal of the National Medical Association     Volume:  96     ISSN:  0027-9684     ISO Abbreviation:  J Natl Med Assoc     Publication Date:  2004 Oct 
Date Detail:
Created Date:  2004-11-15     Completed Date:  2004-12-23     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  7503090     Medline TA:  J Natl Med Assoc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1337-43     Citation Subset:  IM    
OMNI Research Group, Department of Obstetrics & Gynecology, University of Ottawa, Faculty of Medicine, Ottawa, Canada.
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MeSH Terms
African Americans / statistics & numerical data*
European Continental Ancestry Group / statistics & numerical data*
Fetal Mortality*
Infant Mortality*
Infant, Newborn
Maternal Age
Paternal Age
Retrospective Studies
Risk Factors
Socioeconomic Factors
Twins / ethnology*
United States / epidemiology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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